Home / 284,715.12-427,067.28-85,036.08

Finding the Fourth Proportional to 284,715.12, 427,067.28 and 85,036.08

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Solution

The fourth proportional to 284,715.12, 427,067.28 and 85,036.08 is: 127,552.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,715.12 : 427,067.28 = 85,036.08 : x
  2. Step 2: Convert to fraction form
    284,715.12/427,067.28 = 85,036.08/x
  3. Step 3: Cross multiply
    284,715.12x = 427,067.28 × 85,036.08
  4. Step 4: Simplify right side
    284,715.12x = 36,316,127,387.46
  5. Step 5: Solve for x
    x = 36,316,127,387.46/284,715.12
  6. Step 6: Final answer
    x = 127,552.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.